Air-circulating device.



M. MONTAGUE. AIR CIRCULATING DEVICE. APPLICATION FILED NOV. 8. 1915.

Patented Sept. 5, 1916.

2 SHEETS-SHEET l.

M. MONTAGUE.

AIR CIRCULATING DEVICE. APPLICATION FILED NOV. 8. I915.

Patented Sept. 5, 1916.

2 SHEETSSHEET 2.

gnmmtoz 4 mar ne conr Instant.

" IIosnr Mourners, or cnnrs'rrsnune, vIneInIn, srenon 'ro Irnonr'r vnn'rI- Inc,

F EOANOIW. ll vmo.

l tI-CIRC'ULATING DEVICE.

Patented dept. 5, 49th..-

Application filed November 8, 19-15. Serial No. 60,361.

To all whom it may concern citizen of the United States, residing at lltl hill

Christiansburg, in the county of Montgomery and State of Virginia, have invented certain new and useful Improvements in Air-Circulating Devices; and I do declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in air circulating devices'a'nd has for its object to provide an extremely simple yet highly eilicient contrivance of this class capable, by the use of a single rotary fan, of supplying fresh air into a buildlng, drawing the foul air therefrom, and discharging such foul air into the atmosphere on the exterior of the building.

With thisgeneral object in view, the in-.

vention resides in certain novel features of construction and in unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application, and in which:

Figure 1 is a diagrammatic longitudlnal section of a theater showing the improved device applied; Fig. 2 is a horlzontal sectional view as seen on the plane of the line 22 of Fig. 1; Fig. 3 is an enlarged vertical longitudinal section through the fan casing and the foul air exhaust tubes; Fig. 4 is a. horizontal section through the easing and the fresh air supply tubes, and Figs. 5 and 6 are vertical transverse sections as seen on the planes indicated by the" lines 5 5 and 66 of Fig. 3.

][n specifically describing the invention shown in the drawings above briefly described, similar characters will be placed on corresponding parts throughout the several lid views and reference will be herein made to such parts by their respective indices. To this end, C represents a chamber to be ventilated, such chamber being considered in the present showing as a moving picture theater or the like in which the usual seats S are provided, such seats being sup ported upon the floor F which inclines upwardly and rearwardly as is common in theaters, and numerous other types of assembly halls.

- lDisposedat an appropriate point on the exterior of the building, is a casing 1 here shown as'formed of a cylindrical section 2 and a conical section 3 connected therewith at its enlarged end, the section 2 being equipped with an end wall 4 having a central aperture 5 which serves as a fresh air inlet, while the contracted endxof the sect1on 3 ,is connected in any preferred manner to one or more upright pipes 6 which constitutesupplemental air inlets. Two pipes 6 are shown as leading through one wall of the building to points a shortdistance beslow the ceiling thereof and above the floor. The curved side of the casing section 2 is provided with a plurality of main fresh air outlets 7 from which pipes 8 lead into the building at an appropriate level, the free ends of said pipes being equipped with air deflectors 9 capable of adjustment thereon and adapted to control the currents of fresh air forced into the building by a fan yet to be described.

In addition to the features above described, the section 3 is formed with a plurality of supplemental air outlets 10 preferably having control valves 11, it being through the outlets 10 that foul air drawn from the building through the pipes 6, is to be discharged. As shown in the draw- -ings, the invention contemplates the use of disposed in close proximity to the foul air outlets 10 as disclosed most clearly in Fig. 4. Uperating within the casing section '2 upon a shaft 13 driven by a motor or the equivalent 14, is a rotary fan 15, the axis of such fan being disposed endwise of the casing'l. It is preferable that the central portion 16 of thefan be of a diameter equal to or greater than that of the fresh air inlet5, and that the numerous radiating blades 17 of said fan be curved transversely as shown in Fig.4. Furthermore, the periphery of the fan should be positioned in fairly close proximity to the fresh air out lets 7 and said fan must be driven in the direction indicated by the arrows 18 in Figs. 3 and 4; that is, if the blades be pitched as shown. Obviously, however, if such blades be reversed, the direction of rotation may also be reversed.

' air are represented by 1 I obvious that whileithe throw a bly outward, with {the result that such air is 'In operation, the fan 15 isrotated at a high rate 'of. "speed and is thus caused to air within the casing section 2 forciexpelled mostly: through, the fresh 'air outlets '7, but partially 'r'through the foul air outlets 10. From the outlets 7 the fresh air passes through the pipes 8 into the buildthe casing will be constantly replenished through'the opening 5. The air now escaping under pressure through the openings 10 will create a strong suction through the pipes 6 and the casing section 3, the result being that foul air from both the upper and lower portions of the building will be drawn through said pipes into the section 3 and will be discharged therefrom through, the openings. 10 into the atmosphere on the vent any noticeable amount of such air from force as to cause it to numerous outlets.

.constructionhave been shown for illustratails 1 connection with t entering the section 3. However, I .have

found that in some cases it is-unnec'ess'ary to use this partition, sincethe air is generally thrown outwardly with such great From the foregoing description, taken in e accompanying'drawings, it will be, obvious that although the con struction of the improved device is' very simple. and comparatively inexpensive, it.

will behighly efficient and durable and may be inexpensively maintained; In the drawings, certain specific details of tive purposes,'and in the preceding such dehave been, described, but obviously numerous changes may be resorted to within the scope of the invention as claimed without sacrificing the primary advantages thereof.

I claim: I 1. An air circulatingdevlce comprislng a main and a supplemental chamber communicating one with the other, an air inlet into N the main chamber and an outlet therefrom,

- an'air inlet intothe supplemental chamber p the supplemental chamber. 1 55 and an outletfro'm the latter, in combination with a rotary fan in said main chamber a .for creating two currents of air respectively 4 through the. inlet and outlet of the main chamber and through the inlet andoutlet of 2.v Anair circulating device comprising a ing, and the supply of fresh air within .of the casing to also immediately seek the 'an axis extending endwise of said casing, a partition between the ends of said casing dividing the latter into a main and a supplemental chamber, said partition being spaced from the wall of the casing to establlsh communication between the two chambers, main and supplemental air inlets rcspectively into the main and supplemental chambers, main and supplemental outlets respectively from said main and supplemental chambers, and a rotary fan in the main chamber for delivering air centrifugally through the ,main outlet, saidfan being disposed adjacent the partition and'the supplemental air outlet bein located near sald partition, whereby air. rom said fan may likewise be discharged through said supplemental outlet.-

3. An air circulating device comprising a casing having in one end a mainair inlet and in its other end a supplemental air inlet, said casing also having in its side a main air outlet adjacent its first named end and a supplemental air outlet space toward its other end from said main outle in combination with a partition in the casing between the main and supplemental air outlets and inclo'se proximity to the latter, and a rotary fan in the casing having'its axis disendwise of said casing, said fan hav-' mg its periphery positioned in close proxim ty to the'malnair'outlet to discharge a current of air therethrough, the aforesaid partltlon bemg spaced from the curved wall permit part of the air from the fan to be discharged through the supplemental air outlet.

. 4. An air circulating device comprising a casing formed'ofa cylindrical section having a closed endand'an open end, anda -con1cal section connected at its larger end with said open endof the cylindrical section, the center of the closed end of the c lindrical section being provided with a mam conical section is formed with a su plemental air inlet,the circular wall of said cy-' lindrical section having therein amain air outlet, while the wall of the conical section is provided with a supplemental airoutlet' in combinationwith a rotary fan mounted in the cylindrical section of the casing upon having its periphery disposed in imity to the main a1r outlet.

5. An air circulating device comprising a casing 'formed of a cylindrical section hav: ing a closed end and an open end, and a conical section connected at its larger end with said open end of the'cylindrical section, the

center of the closed end of the cylindrical section being provided with a main air inlet;

close prox while the contracted end of' the conical section is formed witha supplemental air inlet,

the circular wall of said cylindrical section having therein a main a1r outlet, while the a1r inlet, while the contracted end of the casing and a supplemental air outlet; in combination with a, rotary fan mounted in the cylindrical section of the casing upon an ofis extending endwise of said casing andhaving its pe riphery disposed in close proximity vto the main air outlet, and a circular artition disposed atright angles to the exls of. the easmg and located in. a plane between the main to and supplemental air outlets, said partition having its edge spaced fromthe gutted wall my-hand in presence of two subscribing Wittt nesses.

. MUSBY MQNThGlUE. Witnesses: 1 Enwu. Bum,

L. D. MoCAm.. 

